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Finding the Fourth Proportional to 22,231.43, 33,348.89 and 7,440.40

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Solution

The fourth proportional to 22,231.43, 33,348.89 and 7,440.40 is: 11,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,231.43 : 33,348.89 = 7,440.40 : x
  2. Step 2: Convert to fraction form
    22,231.43/33,348.89 = 7,440.40/x
  3. Step 3: Cross multiply
    22,231.43x = 33,348.89 × 7,440.40
  4. Step 4: Simplify right side
    22,231.43x = 248,129,081.16
  5. Step 5: Solve for x
    x = 248,129,081.16/22,231.43
  6. Step 6: Final answer
    x = 11,161.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.